Make a pie chart using ggplot2

The function pie_maker creates a pie chart using ggplot2. It takes two vectors of values and optionally a second vector of values to create a pie chart with two layers.

Usage

pieplot(x1, cols, x2 = NULL, label = NULL, ...)

Arguments

x1

A numeric vector containing the values for the first layer of the pie chart.

cols

A character vector containing the colors for the slices of the pie chart.

x2

An optional numeric vector containing the values for the second layer of the pie chart.

label

An optional character string to be used as the title

...

Currently not used.

Value

ggplot object

Examples

pieplot(x1 = c(123, 456),
  cols = c("#44aa99", "#117733"))


pieplot(x1 = c(50 - 20, 20, 80, 180 - 80),
  cols = c("#bbbbbb", "#44aa99", "#117733", "#dddddd"), x2 = c(100,130))